STAR-CCM+ V2.10: Multiphase Flow

By DE Editors

CD-adapco (New York) released of STAR-CCM+  V2.10, the latest version of its engineering process oriented computational fluid dynamics (CFD) software, which includes enhancements in terms of usability, CAE process, and physical modeling capability.

STAR-CCM+ V2.10 introduces a Lagrangian multiphase flow capability, which allows users to simulate the transport of solid particles, liquid droplets, or bubbles of gas by a background fluid. The trajectories are calculated from the inertia,  hydrodynamic drag, and gravitational forces acting on each of the particles,  droplets, or bubbles (known collectively as discrete phases), for both steady and unsteady simulations.

The multiphase capability of STAR-CCM+ V2.10 now has a compressibility option for free-surface calculations that will allow users to simulate the progress of pressure waves through liquids and to consider the influence of compressibility in regions of mixed vapor and liquid, in which the speed of sound is often lower than in either the liquid or vapor phases individually.

Although STAR-CCM+’s surface-wrapping capability automatically repairs complex or ‘dirty’ imported CAD, a typical first stage in performing a simulation can be to group specific areas into contiguous regions that prescribe boundary conditions. In STAR-CCM+  V2.10 that process is improved with Boolean operations on surface regions:  adding, subtracting, or intersecting multiple surface areas to create the required leak-free fluid domains. This release also features the addition of a dedicated heat exchanger model for use in under-hood thermal management simulation.

The benefit brought by the parallel client / server architecture has been reinforced to enable collaborative teamwork. Multiple STAR-CCM+ clients can now connect on the same STAR-CCM+ server and interact for their design reviews phases.

Go to CD-adapco for details.

Sources: Press materials received from the company and additional information gleaned from the company’s website.